1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rusak2 [61]
3 years ago
13

Kelly reads x hours a week. tim reads two times more than kelly and jim reads five hours more than tim. which expression represe

nts the amount of time jim reads?
Mathematics
2 answers:
uysha [10]3 years ago
8 0
 Tim = x times 2  
  Jim= add 5

x times 2 plus add 5
harkovskaia [24]3 years ago
7 0

Answer:

2x+ 5 expression represents the amount of time jim reads

Step-by-step explanation:

As per the statement:

Kelly reads x hours a week.

⇒Kelly read in a week = x hours

Also, tim reads two times more than kelly

⇒tim read in a week= 2x

It is also given that:

jim reads five hours more than tim.

⇒Jim = tim read + 5

⇒Jim read in a week = 2x +5

Therefore, expression represents the amount of time jim reads is, 2x+ 5

You might be interested in
Please do help I'm very confused
andreyandreev [35.5K]

Answer: 1,760 centimeters

Step-by-step explanation: Your Answer is above

4 0
3 years ago
The width of a rectangle is 3 meters less than the length period the perimeter is 14 meters. Find the width
beks73 [17]
The width of the rectangle is 2 meters
3 0
3 years ago
Find the area of the shape.
12345 [234]

Answer

300

Step-by-step explanation:

multiply by each other

4 0
3 years ago
PLEASE HELP ME! I am suck on this math assignment
patriot [66]

Hey there! I'm happy to help!

-----------------------------------------------------------------------------------------

<u>QUESTION 18</u>

Here is how you multiply a 2×2 matrix by a column vector (just one column matrix).

\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right] *\left[\begin{array}{ccc}x\\y\\\end{array}\right] = \left[\begin{array}{ccc}ax&by\\cx&dy\\\end{array}\right]

Once you get that final matrix, you add the rows which will give you a final column vector. Let's do it with this question, as we are multiplying together the matrices A and v.

\left[\begin{array}{ccc}-1&4\\2&0\\\end{array}\right] *\left[\begin{array}{ccc}8\\6\\\end{array}\right] =\left[\begin{array}{ccc}-8&24\\16&0\\\end{array}\right] =\left[\begin{array}{ccc}16\\16\\\end{array}\right]

So, your answer is \left[\begin{array}{ccc}16\\16\\\end{array}\right].

-----------------------------------------------------------------------------------------

<u>QUESTION 14</u>

We have this equation of an ellipse and we need to solve for y. When we have a more complex equation to solve you get rid of the things furthest from the variable you are solving for first and then you get closer and closer to it.

\frac{x^2}{25} + \frac{y^2}{16}=1

We subtract \frac{x^2}{25} from both sides.

\frac{y^2}{16}=1-\frac{x^2}{25}

We multiply both sides by 16.

y^2=1-\frac{x^2}{25}*16

We square root both sides.

y= \sqrt{1-\frac{x^2}{25}*16

We can take a four out of our root (because 16 is a perfect square so it can be simplified more).

y= 4\sqrt{1-\frac{x^2}{25}

And we take out 1/5 (which is the square root of 1/25).

y=± \frac{4}{5}\sqrt{1-x^2

-----------------------------------------------------------------------------------------

<u>QUESTION 17</u>

We see that Sea Slugs have 3/10 matches won, so they have won 30% of their matches.

From now on, they will be winning 2/3 of their games. Let's look at the answer options.

A. If they play 15 more games, they will win 10 of them. Our total matches will be 25 (our original 10+15). So, we will have 13/25, which is equal to 52%, so this is incorrect.

B. If they play 10 more games they win 6 2/3 games (like that makes any sense) for a total of 9 2/3 games out of 20. This is about 48%, so this is incorrect.

C. If they play 40 games, they are winning fractional games again. They win 29 2/3 games out of 50 total, which is about 59%, but not quite 60. This is also incorrect.

D. If they play 45 matches, they will win 30 games. Add the original 10 and you have 40 games. Our total is 55. 40/55 is about 73%, so they have passed that 60% threshold, so this is the correct answer.

-----------------------------------------------------------------------------------------

<u>QUESTION 16</u>

Our question tells us that if we have two numbers x and y, and we add them, it has to be 24 or greater. By saying it can be equal to 24 or greater, we are going to be using a ≤ or ≥ sign. The opening of the arrow always faces the equal or greater quantity, and in this case it is x+y, so it will look like x+y≥24.

This eliminates answer choices B and D as they do not have the equal part on the inequality.

Product means to multiply, so it will be written as xy. It has to be less than 60, so in this case the greater quantity is 60, so the arrow will opening towards 60, so it will look like xy<60.

So, our final answer is A.

-----------------------------------------------------------------------------------------

<u>QUESTION 12</u>

You can only multiply matrices if the number of columns in the first matrix is equal to the number of rows in the second. So basically the two interior numbers have to be the same (a,b) and (b,c). So, if we follow this, we get these answers:

2×2 times 2×1 YES

2×1 times 2×2= NO

3×3 times 3×1= YES

3×1 times 3×3= NO

-----------------------------------------------------------------------------------------

Have a wonderful day and keep on learning! :D

6 0
2 years ago
Someone please go through this with me I beg, I will award brainiest! Maths homework due in for the 8th.. ;((
enot [183]

Essentially, you're going to want to reverse the steps on x in order to isolate it from the rest of the variables. To do this, perform inverse operations on x. The first one of these is the multiplication of x and m, so divide both sides by m to cancel m out on the right side. Now we have y/m = x + b. The final thing to do in order to isolate x is to subtract b from both sides. This yields us y/m - b = x. This can be rearranged into x = y/m - b, which should be your answer.


6 0
3 years ago
Other questions:
  • The population of a town increased by 15% in 2016, and decreased by 5% in 2017. If the population of the town was 60,000 in the
    13·1 answer
  • If you spend $3 on 6 apples what is the unit rate? Or in other words, what is the cost of each apple?
    8·2 answers
  • There is a ratio of five girls to 3 boys there are 24 boys how many girls are thier
    5·2 answers
  • An owner of a company spends $25 on office supplies. The owner is left with $20. Write an equation to find how much money he ori
    7·2 answers
  • FIRST ONE TO ANSWER GETS BRAINLIEST<br> Find the value of x.
    10·1 answer
  • What is the area of this
    6·1 answer
  • What is is one plussssssssss one
    13·2 answers
  • Two ice cream machines make a total of 320 gallons in a certain amount of time. working together for the same length of time how
    13·1 answer
  • An electronics store sells a laptop for p. During the sales period, the shopkeeper offers a 30% discount on the initial price. A
    10·1 answer
  • Calculate the volume of a cylinder of radius 5cm and height 14cm (take pie 22/7)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!